Introduction: Why a DIY Cold Frame is the Gardener’s Secret Weapon When the first frost hits, most gardeners reluctantly say goodbye to fresh greens and tender vegetables. But with a DIY cold frame or a simple row cover, you don’t have to pack up your tools just yet. These low-cost, easy-to-build structures act like mini greenhouses, protecting your crops from frost and extending your harvest well into late fall—and sometimes even winter. In this guide, you’ll learn three practical, budget-friendly plans for building your own cold frames and row covers. Whether you’re a beginner gardener or a seasoned grower, these…